Software Development life cycle

Software Development life cycle

1. V-Shaped Life cycle Model

   • Advantages of the V-Shaped model
   • Disadvantages of the V-Shaped model

2. Waterfall Life Cycle Model

   • Advantages of the Waterfall Model
   • Disadvantages of the Waterfall model

3. Software Development life Cycle Model

   • Requirements-gathering
     • During the needs collection phase, the needs of the company are described.
   • Desing
     • At the design stage, the results of the requirements software design plan.
   • Implementation
     • In the implementation phase, the results of the design phase are translated into code
   • Testing
     • In the testing phase, the results of the implementation phase are run through a series of tests to verify that it functions and that it meets goals of the requirements phase.

4. Incremental Life Cycle Model

   • Advantages of the Incremental model
   • Disadvantages of the Incremental model

5. Spiral Life Cycle Model

   • Advantages of the Waterfall model
     • The Waterfall model is appropriate for small development projects in the requirements are well known.
   • Disadvantages of the Waterfall model
     • Although the model cascade a good introduction in the software lifecycle models, its usefulness is limited. Due to the rigidity of the model, you must indicate all the requirements explicitly before development begins. If the requirements change or are added, the project it must start over from the beginning.

6. The term software development life cycle model is a way of describing the planning, designing, coding, and testing of a software system, as well as the method in which these steps are implemented.